-140- 
Extracts of the whole plant (rl. F.) killed only 25 percent of the 
mosquito larvae tested.—Hartzell and Yft.lcox.on ( 168 ) . 
STACHYS OFFICINALIS (L.) Franch. Common betony. 
TEUCRIUM CANADENSE L. American germander. 
Extracts from the entire plant of the common betony were more or 
less repellent to the Jrpenese beetle, but extracts of the American 
germander were not repellent.— Metzger end Grant ( 277 ) . 
THYMUS SERPYLLUM L. Mother-of-thyroe. 
In France e decoction of this plant has been U3ed to cure itch 
and some ether skin disorders. — Kirtikar and Basu (220, v. 2, p. 1C2S). 
THYMUS VULGARIS L. Common thyme. 
There are many papers dealing with the oil of tnyme and thymol 
used as insecticides, although these will not be reviewed here. Thymol 
is derived from the essential oils of T. vulgaris and the horse mint 
( ?Aonarda punctate. ) • 
Comments by Reviewer . — Mentha ceae is cot a promising family in 
which to find insecticide! material, but the essential oils from several 
species have been found efficient as repellents and attract ants. 
MIMOSACEAE 
(Mimosa Family) 
ACACIA CATECHU Willd. Cutch. Catechu. 
Extracts were not repellent to the Japanese beetle.— Metzger and 
Grant (277) » 
A patented insect repellent was described. It contained cetechu- 
tannic acid as obtained from the catechu or cutch, which wes obtained 
from the wood and pods of Ao catechu and from the beetle nut or wood 
and fruit of Arec a catechu , a species of palm. This liquid was to be 
used in a paint or coating for application to underwater structures 
to prevent decay and ravages by marine life, insects, vemin, and ro- 
dents. --Cross ( 109 ) . 
ACACIA FALCIF0RMI3 DC. 
Extracts of the leaves and Dark of this plant from Australia were 
nontoxic to the bean aphid. --Tattersfield and Gimingharo (391). 
